Stone Soup :)

Back in the day, yours truly learned there were three states of matter, Solid, Liquid and Gas. That's it and ... inevitably, H2O was the model of showing this fact to be true due to the ease in which these states can be expressed by this unique compound known as water. In 2018, the notion of states has entered the quantum realm big time as described in a  Quanta Magazine article titled Physicists Aim to Classify All Possible Phases of Matter.

In the last three decades, condensed matter physicists have discovered a wonderland of exotic new phases of matter: emergent, collective states of interacting particles that are nothing like the solids, liquids and gases of common experience.

The phases, some realized in the lab and others identified as theoretical possibilities, arise when matter is chilled almost to absolute-zero temperature, hundreds of degrees below the point at which water freezes into ice. In these frigid conditions, particles can interact in ways that cause them to shed all traces of their original identities. Experiments in the 1980s revealed that in some situations electrons split en masse into fractions of particles that make braidable trails through space-time; in other cases, they collectively whip up massless versions of themselves. A lattice of spinning atoms becomes a fluid of swirling loops or branching strings; crystals that began as insulators start conducting electricity over their surfaces. One phase that shocked experts when recognized as a mathematical possibility in 2011 features strange, particle-like “fractons” that lock together in fractal patterns

Classifying said phases is now akin to the periodic table classifying elements.

Stone Soup indeed. :)